master's thesis
Determination of glycaemic index of post-training recovery supplements

Dalibor Karas (2014)
Josip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Department of Food and Nutrition Research
Sub-department of Nutrition
Metadata
TitleOdređivanje glikemijskog indeksa pripravaka za oporavak nakon treninga ("recovery" pripravaka)
AuthorDalibor Karas
Mentor(s)Ines Banjari (thesis advisor)
Abstract
Glikemijski indeks (GI) određene količine i vrste ugljikohidrata utječe na brzinu promjene koncentracije glukoze u krvi (GUK), odnosno metabolizam glukoze. Konzumacija ugljikohidrata sa različitim GI prije, tijekom i nakon treninga utječe na sportsku izvedbu, a preferira se hrana visokog GI. Provedeno je kontrolirano kliničko istraživanje s ciljem utvrđivanja GI dva komercijalno dostupna pripravka za oporavak nakon treninga, a prema metodi ISO 26 642:2010. Test uzorak 1 je imao statistički značajno najnižu hedonističku ocjenu (4,0 ± 1,7) i subjektivni osjećaj sitosti (50,5 ± 3,6), a kontrolni uzorak najviše (2,0 odnosno 64,8 ± 9,0). Statistički značajno višu koncentraciju GUK imala su oba test uzorka u usporedbi sa kontrolom. Površina ispod krivulje (iAUC) je statistički značajno najveća za test uzorak 1 (255,9 ± 50,7), u usporedbi s kontrolom (78,9 ± 8,0) i test uzorkom 2 (127,3 ± 12,6). GI test uzorka 1 je značajno viši u odnosu na test uzorak 2 (317,9 ± 122,4 naprema 161,6 ± 14,6, p = 0,022). Oba uzorka spadaju u kategoriju visokog GI, što je u skladu s njihovom namjenom. Dobiveni rezultati upućuju na razlike u mehanizmu djelovanja na metabolizam glukoze koje unatoč istoj klasifikaciji od strane proizvođača vjerojatno proizlaze iz formulacije proizvoda (nutritivnog sastava).
Keywordsnutrition athletes glycaemic index glucose metabolism
Parallel title (English)Determination of glycaemic index of post-training recovery supplements
Committee MembersIvica Strelec
Ines Banjari
Daniela Čačić Kenjerić
Milena Mandić
GranterJosip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Lower level organizational unitsDepartment of Food and Nutrition Research
Sub-department of Nutrition
PlaceOsijek
StateCroatia
Scientific field, discipline, subdisciplineBIOTECHNICAL SCIENCES
Food Technology
Food Safety and Quality
Study programme typeuniversity
Study levelgraduate
Study programmeFood Science and Nutrition
Academic title abbreviationmag. nutr
Genremaster's thesis
Language Croatian
Defense date2014-09-29
Parallel abstract (English)
Glycaemic index (GI) of a certain quantity and type of carbohydrate affects the rate of change of glucose concentration or glucose metabolism in blood. Consumption of carbohydrates with different GI before, during and after exercise affects the athletic performance and food with a high GI is preferred. A controlled clinical trial was conducted to determine the GI of two commercially available preparations for recovery after training, according to the method of ISO 26 642:2010. Test sample 1 had significantly the lower hedonic score (4.0 ± 1.7) and a subjective feeling of satiety (50.5 ± 3.6), while the control sample had the higher hedonic score (2.0 or 64.8 ± 9.0). A significantly higher concentration of glucose had both test samples as compared to the control. The area under the curve (iAUC) is significantly the highest in the test sample 1 (255.9 ± 50.7), compared to the control (78.9 ± 8.0) and the test sample 2 (127.3 ± 12.6). GI of the test sample 1 is significantly higher than the one in the test sample 2 (317.9 ± 122.4 versus 161.6 ± 14.6, p = 0.022). Both samples belong into the category of high GI, which is in accordance with their intended purpose. The results indicate differences in the mechanism of influence on glucose metabolism, which are probably a result from product formulations (nutritional composition), despite of the same classification by the manufacturer.
Parallel keywords (Croatian)prehrana sportaši glikemijski indeks metabolizam glukoze
Resource typetext
Access conditionOpen access
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
URN:NBNhttps://urn.nsk.hr/urn:nbn:hr:109:956559
CommitterIvana Šuvak